Statement Of Cash Flows [Abstract]
| Concept |
2023-02-01 to 2024-01-31 |
2023-02-01 to 2024-01-31 |
2023-02-01 to 2024-01-31 |
2023-02-01 to 2024-01-31 |
As at 2024-01-31 |
2023-02-01 to 2024-01-31 |
2023-02-01 to 2024-01-31 |
2023-02-01 to 2024-01-31 |
2023-02-01 to 2024-01-31 |
2023-02-01 to 2024-01-31 |
2022-02-01 to 2023-01-31 |
As at 2023-01-31 |
2022-02-01 to 2023-01-31 |
2022-02-01 to 2023-01-31 |
2022-02-01 to 2023-01-31 |
2022-02-01 to 2023-01-31 |
2022-02-01 to 2023-01-31 |
2022-02-01 to 2023-01-31 |
2022-02-01 to 2023-01-31 |
2022-02-01 to 2023-01-31 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Statement of cash flows [abstract] | ||||||||||||||||||||
| Cash flows from (used in) operating activities [abstract] | ||||||||||||||||||||
| Profit (loss) |
–
GBP
|
–
GBP
|
–
GBP
|
345,000,000
GBP
|
— |
345,000,000
GBP
|
–
GBP
|
–
GBP
|
70,000,000
GBP
|
415,000,000
GBP
|
–
GBP
|
— |
471,000,000
GBP
|
–
GBP
|
–
GBP
|
471,000,000
GBP
|
–
GBP
|
118,000,000
GBP
|
589,000,000
GBP
|
–
GBP
|
| Cash flows from (used in) operations | — | — | — | — | — |
1,438,000,000
GBP
|
— | — | — | — | — | — | — | — | — |
984,000,000
GBP
|
— | — | — | — |
| Income taxes paid (refund), classified as operating activities | — | — | — | — | — |
1 17
GBP
|
— | — | — | — | — | — | — | — | — |
130,000,000
GBP
|
— | — | — | — |
| Cash flows from (used in) operating activities | — | — | — | — | — |
1,32 1
GBP
|
— | — | — | — | — | — | — | — | — |
820,000,000
GBP
|
— | — | — | — |
| Cash flows from (used in) investing activities [abstract] | ||||||||||||||||||||
| Cash flows from losing control of subsidiaries or other businesses, classified as investing activities | — | — | — | — | — |
9,000,000
GBP
|
— | — | — | — | — | — | — | — | — |
8,000,000
GBP
|
— | — | — | — |
| Cash flows used in obtaining control of subsidiaries or other businesses, classified as investing activities | — | — | — | — | — |
3,000,000
GBP
|
— | — | — | — | — | — | — | — | — |
–
GBP
|
— | — | — | — |
| Interest received, classified as investing activities | — | — | — | — | — |
16,000,000
GBP
|
— | — | — | — | — | — | — | — | — |
5,000,000
GBP
|
— | — | — | — |
| Cash flows from (used in) investing activities | — | — | — | — | — |
339,000,000
GBP
|
— | — | — | — | — | — | — | — | — |
432,000,000
GBP
|
— | — | — | — |
| Cash flows from (used in) financing activities [abstract] | ||||||||||||||||||||
| Proceeds from issuing shares | — | — | — | — | — |
4,000,000
GBP
|
— | — | — | — | — | — | — | — | — |
8,000,000
GBP
|
— | — | — | — |
| Proceeds from borrowings, classified as financing activities | — | — | — | — | — |
–
GBP
|
— | — | — | — | — | — | — | — | — |
99,000,000
GBP
|
— | — | — | — |
| Interest paid, classified as financing activities | — | — | — | — | — |
7,000,000
GBP
|
— | — | — | — | — | — | — | — | — |
5,000,000
GBP
|
— | — | — | — |
| Cash flows from (used in) financing activities | — | — | — | — | — |
898,000,000
GBP
|
— | — | — | — | — | — | — | — | — |
94 3
GBP
|
— | — | — | — |
| Increase (decrease) in cash and cash equivalents before effect of exchange rate changes | — | — | — | — | — |
84,000,000
GBP
|
— | — | — | — | — | — | — | — | — |
555,000,000
GBP
|
— | — | — | — |
| Effect of exchange rate changes on cash and cash equivalents [abstract] | ||||||||||||||||||||
| Effect of exchange rate changes on cash and cash equivalents | — | — | — | — | — |
1,000,000
GBP
|
— | — | — | — | — | — | — | — | — |
16,000,000
GBP
|
— | — | — | — |
| Cash and cash equivalents | — | — | — | — |
360,000,000
GBP
|
— | — | — | — | — | — |
286,000,000
GBP
|
— | — | — | — | — | — | — | — |